'Assassinate' in the Bible

At that time when Mordecai was sitting in the king's gate, Bigthan and Teresh, two of the king's eunuchs among those who guarded the threshold, became angry and conspired to assassinate King Ahasuerus.

It was found recorded there that Mordecai had reported about Bigthana and Teresh, two of the king's eunuchs who guarded the entrance to the restricted areas of the palace, and that they had conspired to assassinate King Ahasuerus.